[INFO] cloning repository https://github.com/Rojetto/guac
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rojetto/guac" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRojetto%2Fguac", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRojetto%2Fguac'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4ceb59e90ab0a89dfb56778d0abe237b4985a23b
[INFO] checking Rojetto/guac against master#91775dbec9771aa0c1b9ebe268eb5bd271e79a7a for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRojetto%2Fguac" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Rojetto/guac
[INFO] finished tweaking git repo https://github.com/Rojetto/guac
[INFO] tweaked toml for git repo https://github.com/Rojetto/guac written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Rojetto/guac on toolchain 91775dbec9771aa0c1b9ebe268eb5bd271e79a7a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Rojetto/guac already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+91775dbec9771aa0c1b9ebe268eb5bd271e79a7a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded crossbeam v0.1.6
[INFO] [stderr]   Downloaded byteorder v0.4.2
[INFO] [stderr]   Downloaded log v0.3.5
[INFO] [stderr]   Downloaded gleam v0.2.5
[INFO] [stderr]   Downloaded backtrace v0.1.8
[INFO] [stderr]   Downloaded xml-rs v0.1.26
[INFO] [stderr]   Downloaded xml-rs v0.2.2
[INFO] [stderr]   Downloaded core-graphics v0.2.1
[INFO] [stderr]   Downloaded objc v0.1.8
[INFO] [stderr]   Downloaded cgmath v0.7.0
[INFO] [stderr] error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cgmath-0.7.0/Cargo.toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   dependency (rustc-serialize) specified without providing a local path, Git repository, version, or workspace dependency to use


overridden task result to prepare-fail:unknown

Caused by:
    broken dependencies: 
    
    warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
        Blocking waiting for file lock on package cache
        Updating crates.io index
        Blocking waiting for file lock on package cache
     Downloading crates ...
      Downloaded crossbeam v0.1.6
      Downloaded byteorder v0.4.2
      Downloaded log v0.3.5
      Downloaded gleam v0.2.5
      Downloaded backtrace v0.1.8
      Downloaded xml-rs v0.1.26
      Downloaded xml-rs v0.2.2
      Downloaded core-graphics v0.2.1
      Downloaded objc v0.1.8
      Downloaded cgmath v0.7.0
    error: failed to parse manifest at `/workspace/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cgmath-0.7.0/Cargo.toml`
    
    Caused by:
      dependency (rustc-serialize) specified without providing a local path, Git repository, version, or workspace dependency to use